如何获取双卡手机号码？

Question

I want to get the mobile number from a different sim. Dual sim number is saved in a different variable.

Some people give answer like:

TelephonyManager tm =(TelephonyManager)getSystemService(TELEPHONY_SERVICE); 
String number = tm.getLine1Number();

I also give the permission in the Manifest file:

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

but it didn't work, all time number variable give ("") value. So please provide mw with a solution to this problem.

Answer 1

If tm.getLine1Number() returns null or "" try to use tm.getSubscriberId() it always worked for me.

String number = tm.getLine1Number();
if (number == null || number.equals("")) {
    number = tm.getSubscriberId();
}

Hope this helps.

Answer 2

You can do this through the Subscription Manager for minSdkVersion 22 onwards :)

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        SubscriptionManager mSubscriptionManager = SubscriptionManager.from(getBaseContext());
        List<SubscriptionInfo> subscriptions = mSubscriptionManager.getActiveSubscriptionInfoList();


        for(SubscriptionInfo subscriptionInfo: subscriptions) {
            Log.v("SIM", subscriptionInfo.getNumber());
        }


    }